Free Tax Tools

Free Australian tax calculators: GST, home office, cents per km, BAS quarterly, instant asset write-off, and sole trader income tax — all updated for FY2025-26.

1099 Self-Employment Tax Calculator (2026)

Free 2026 self-employment tax calculator for 1099 freelancers. See your Social Security and Medicare tax, the deductible half, and quarterly payment dates.

MTD Threshold Checker UK

Free Making Tax Digital threshold checker for UK sole traders and landlords. Enter your income and see if the £50k, £30k or £20k MTD threshold applies to you.

BAS Calculator Quarterly Australia

Calculate your quarterly BAS instantly. Enter sales and purchases, see GST payable, optional PAYG instalments, and total amount due to the ATO.

Cents Per KM Calculator Australia

Calculate your work-related car deduction using the ATO's cents per km method. 88c/km for FY2025-26, capped at 5,000 business km per car.

Instant Asset Write-Off Calculator Australia

Check if your asset qualifies for the $20,000 instant asset write-off in 2025-26. Eligibility test for turnover, asset cost, and installation deadline.

Sole Trader Tax Calculator Australia

Estimate your sole trader tax for FY2025-26. Income tax, Medicare Levy, LITO offset, and take-home pay — based on Stage 3 brackets.

GST Calculator Australia

Free GST calculator for Australian businesses. Instantly add or remove 10% GST from any amount. Calculate GST-inclusive and GST-exclusive prices.

Home Office Deduction Calculator Australia

Calculate your home office tax deduction in Australia. Compare the fixed rate method (67c/hour) vs actual cost method and see which gives a bigger claim.

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